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Execução de serviços baseada em regras de negocio

Aqueo Kamada
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 12/12/2006 PT
Relevância na Pesquisa
26.35%
No atual mundo globalizado, com interações fortemente baseadas na Web, as relações entre pessoas, empresas e órgãos de governo estão sujeitas a mudanças cada vez mais rápidas. Esse cenário torna ainda mais crítico o já antigo problema de manutenção de sistemas, uma vez que as atualizações precisam ser realizadas para contemplar novos modelos de negócio, no contexto destas mudanças rápidas. Esta situação justifica a necessidade de uma abordagem que consiga capturar as mudanças nos negócios e rapidamente implementá-las nos sistemas computacionais. Considera-se que existem porções da lógica de negócio que são bastante voláteis e suscetíveis às mudanças e outras porções que são bastante estáveis e muito pouco suscetíveis às mudanças. Neste contexto, propõe-se um modelo para desenvolvimento rápido e execução de serviços, baseado em regras de negócio. Neste modelo as porções voláteis são externalizadas como regras de negócio e as porções estáveis como serviços. A prova de conceito desta abordagem traduz regras modeladas em linguagem natural para regras no modelo da máquina de regras instanciada, que invoca os serviços; In the current globalized world, characterized by strong Web based interactions...

Negotiation environment to support enterprise interoperability sustainability

Santos, Tiago José Ministro Costa
Fonte: Faculdade de Ciências e Tecnologia Publicador: Faculdade de Ciências e Tecnologia
Tipo: Dissertação de Mestrado
Publicado em //2013 ENG
Relevância na Pesquisa
36.03%
Dissertation to obtain the Master degree in Electrical Engineering and Computer Science; Specialized and diversified global markets are facing a competitiveness that keeps pushing enterprises to abandon their traditional product centrism, where basically it is enough to concentrate their efforts in very narrow specialization fields and change their methods of work relying on networks of other providers that are able to fulfill their needs towards the development of complete solutions. These new methods of work, regarding the rapid change in markets and business organizations, requires new interoperability demands and complexity levels, from connection and syntax-oriented exchanges to semantic and model-oriented knowledge, which becomes very difficult for enterprises to cope with the pace of change. This dissertation proposes the implementation of a framework, based on agents and rules, to achieve solid and stable integration of solutions, via the use of a strong and formal negotiation mechanism, which will be the basis for increasing the enterprise interoperability in the supply chain for the development of solutions.

Evaluation of a Commercial Rule Engine as a Basis for a Clinical Decision Support Service

Goldberg, Howard S.; Vashevko, Michael; Postilnik, Anatoly; Smith, Kevin; Plaks, Nina; Blumenfeld, Barry M.
Fonte: American Medical Informatics Association Publicador: American Medical Informatics Association
Tipo: Artigo de Revista Científica
Publicado em //2006 EN
Relevância na Pesquisa
26.23%
Current implementation techniques constrain our ability to rapidly deploy and augment clinical decision support systems at Partners Healthcare System. We report on the use of a commercially-available rule engine system—iLog Rules—as the basis for a series of prototypes typifying Partners decision support applications. For three prototypical systems, we successfully decoupled the decision support component from application and support logic, and reimplemented that component using iLog. We found that the rule engine itself provides high-performance execution for the small rulesets we evaluated, and that overall application performance was found to be generally acceptable. We note that the major bottleneck to application performance is the ability to rapidly deliver patient data to the rule engine for execution. Future investigation will focus on abstracting features from each of the prototypes and incorporating them into a scalable and reusable decision support service architecture.

On Implementing Clinical Decision Support: Achieving Scalability and Maintainability by Combining Business Rules and Ontologies.

Kashyap, Vipul; Morales, Alfredo; Hongsermeier, Tonya
Fonte: American Medical Informatics Association Publicador: American Medical Informatics Association
Tipo: Artigo de Revista Científica
Publicado em //2006 EN
Relevância na Pesquisa
36.48%
We present an approach and architecture for implementing scalable and maintainable clinical decision support at the Partners HealthCare System. The architecture integrates a business rules engine that executes declarative if-then rules stored in a rule-base referencing objects and methods in a business object model. The rules engine executes object methods by invoking services implemented on the clinical data repository. Specialized inferences that support classification of data and instances into classes are identified and an approach to implement these inferences using an OWL based ontology engine is presented. Alternative representations of these specialized inferences as if-then rules or OWL axioms are explored and their impact on the scalability and maintenance of the system is presented. Architectural alternatives for integration of clinical decision support functionality with the invoking application and the underlying clinical data repository; and their associated trade-offs are discussed and presented.

A programmable rules engine to provide clinical decision support using HTML forms.

Heusinkveld, J.; Geissbuhler, A.; Sheshelidze, D.; Miller, R.
Fonte: American Medical Informatics Association Publicador: American Medical Informatics Association
Tipo: Artigo de Revista Científica
Publicado em //1999 EN
Relevância na Pesquisa
36.03%
The authors have developed a simple method for specifying rules to be applied to information on HTML forms. This approach allows clinical experts, who lack the programming expertise needed to write CGI scripts, to construct and maintain domain-specific knowledge and ordering capabilities within WizOrder, the order-entry and decision support system used at Vanderbilt Hospital. The clinical knowledge base maintainers use HTML editors to create forms and spreadsheet programs for rule entry. A test environment has been developed which uses Netscape to display forms; the production environment displays forms using an embedded browser.

Modeling and Executing Electronic Health Records Driven Phenotyping Algorithms using the NQF Quality Data Model and JBoss® Drools Engine

Li, Dingcheng; Endle, Cory M; Murthy, Sahana; Stancl, Craig; Suesse, Dale; Sottara, Davide; Huff, Stanley M.; Chute, Christopher G.; Pathak, Jyotishman
Fonte: American Medical Informatics Association Publicador: American Medical Informatics Association
Tipo: Artigo de Revista Científica
Publicado em 03/11/2012 EN
Relevância na Pesquisa
36.35%
With increasing adoption of electronic health records (EHRs), the need for formal representations for EHR-driven phenotyping algorithms has been recognized for some time. The recently proposed Quality Data Model from the National Quality Forum (NQF) provides an information model and a grammar that is intended to represent data collected during routine clinical care in EHRs as well as the basic logic required to represent the algorithmic criteria for phenotype definitions. The QDM is further aligned with Meaningful Use standards to ensure that the clinical data and algorithmic criteria are represented in a consistent, unambiguous and reproducible manner. However, phenotype definitions represented in QDM, while structured, cannot be executed readily on existing EHRs. Rather, human interpretation, and subsequent implementation is a required step for this process. To address this need, the current study investigates open-source JBoss® Drools rules engine for automatic translation of QDM criteria into rules for execution over EHR data. In particular, using Apache Foundation’s Unstructured Information Management Architecture (UIMA) platform, we developed a translator tool for converting QDM defined phenotyping algorithm criteria into executable Drools rules scripts...

User adaptive Web engine : a marketing application in E-commerce

Fung, Shirley S
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 52, [1] p.
ENG
Relevância na Pesquisa
26.34%
In order to improve the effectiveness of communications in marketing, companies must now find ways to target their marketing campaigns to the right people, and present content in a way that the end user is most comfortable with. Contrary to classical market segmentation, the user adaptive Web engine in this paper segments users based on cognitive and cultural dimensions. To build a Web site that changes based on what the user has clicked on, the system must be capable of figuring out what version to serve, and be able to morph between different versions of the Web site. The engine to achieve this goal has two main components: the presentation engine, and the math engine. I am responsible for building the presentation engine, and to ensure that it interfaces well with the math engine. First, I designed the entire system to make sure that it follows the main principle of software engineering-modularity. Then, I implemented the presentation engine. As part of the research group, I helped create working prototypes for two industry partners. Lastly, 501 participants in a study conducted in Japan evaluated the prototype Web site. Results showed significant positive effects of morphing in terms of user experience, and probability of purchase. This research has made contributions to how morphing Web sites should be built. The highlight of the system design is the novel rules component that allows non-technical users to update the behavior of the Web site.; by Shirley S. Fung.; Thesis (M. Eng.)--Massachusetts Institute of Technology...

CHROME: a model-driven component-based rule engine

Vitorino dos Santos Filho, Jairson; Pierre Louis Robin, Jacques (Orientador)
Fonte: Universidade Federal de Pernambuco Publicador: Universidade Federal de Pernambuco
Tipo: Outros
EN_US
Relevância na Pesquisa
36.08%
Vitorino dos Santos Filho, Jairson; Pierre Louis Robin, Jacques. CHROME: a model-driven component-based rule engine. 2009. Tese (Doutorado). Programa de Pós-Graduação em Ciência da Computação, Universidade Federal de Pernambuco, Recife, 2009.; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

REFlex: rule engine for flexible processes

Silva, Natália Cabral; Lima, Ricardo Massa Ferreira de (Orientador)
Fonte: Universidade Federal de Pernambuco Publicador: Universidade Federal de Pernambuco
Tipo: Dissertação
EN
Relevância na Pesquisa
46.66%
Declarative business process modeling is a flexible approach to business process management in which participants can decide the order in which activities are performed. Business rules are employed to determine restrictions and obligations that must be satisfied during execution time. Such business rules describe what must or must not be done during the process execution, but do not prescribe how. In this way, complex control-flows are simplified and participants have more flexibility to handle unpredicted situations. The methods and tools currently available to model and execute declarative processes present several limitations that impair their use to this application. In particular, the well-known approach that employs Linear Temporal Logic (LTL) has the drawback of the state space explosion as the size of the process model grows. Although approaches proposing memory efficient methods have been proposed in the literature, they are not able to properly guarantee the correct termination of the process, since they allow the user to reach deadlock states. Moreover, current implementations of declarative business process engines focus only on manual activities. Automatic communication with external applications to exchange data and reuse functionality is barely supported. Such automation opportunities could be better exploited by a declarative engine that integrates with existing SOC technologies. This work proposes a novel graph-based rule engine called REFlex that does not share the problems presented by other engines...

Model-driven development of adaptive service-based systems with aspects and rules

Yu, J.; Sheng, Q.; Swee, K.
Fonte: Springer-Verlag Berlin; Heidelberger Platz 3 Berlin Germany D-14197 Publicador: Springer-Verlag Berlin; Heidelberger Platz 3 Berlin Germany D-14197
Tipo: Conference paper
Publicado em //2010 EN
Relevância na Pesquisa
36.38%
Service-oriented computing (SOC) has become a dominant paradigm in developing distributed Web-based software systems. Besides the benefits such as interoperability and flexibility brought by SOC, modern service-based software systems are frequently required to be highly adaptable in order to cope with rapid changes and evolution of business goals, requirements, as well as physical context in a dynamic business environment. Unfortunately, adaptive systems are still difficult to build due to its high complexity. In this paper, we propose a novel approach called MoDAR to support the development of dynamically adaptive service-based systems (DASS). Especially in this approach, we first model the functionality of a system by two constituent parts: i) a stable part called the base model described using business processes, and ii) a volatile part called the variable model described using business rules. This model reflects the fact that business processes and rules are two significant and complementary aspects of business requirements, and business rules are usually much more volatile than business processes. We then use an aspect-oriented approach to weave the base model and variable model together so that they can evolve independently without interfering with each other. A model-driven platform has been implemented to support the development lifecycle of a DASS from specification...

Web Components for Development of Computational Methods: Example with Fuzzy Logic Rules

BELLOCCHI GIANNI; FOSCARINI FABRIZIO; CANONICO MARCO; VAN DEN EEDE GUY
Fonte: International Environmental Modelling and Software Society Publicador: International Environmental Modelling and Software Society
Tipo: Contributions to Conferences Formato: CD-ROM
ENG
Relevância na Pesquisa
26.32%
Computational methods (either statistical or non-statistical) for experimental design, data analysis and optimisation are needed to provide information which can be used by a variety of decision makers and for a variety of purposes in the natural sciences research. It is crucial for scientists to keep the pace with evolving computational approaches, to comply with specific needs emerging from applied research. Software tools are desirable not only providing easy access to a large variety of data processing methods but also granting for continually updating, adding more solutions as well as keeping all the parts up to date as computing environments change and novel computational methods evolve. Based on that, the Data Analysis ¿N¿ Assessment (DANA) project was approached and meant as platform-independent, integrated repository of statistical and soft-computing procedures for use in applied research. It consists of a core engine and a set of plug-ins sharing an array of functionalities. The core engine is written in Java and integrates a set of libraries (e.g. from the R language for statistical computing, http://www.r-project.org) accessible via web services. This is achieved through usage of the object-oriented paradigm and high-level utility functions...

Personal unified multimedia applications

Duarte, Bruno Miguel Silva
Fonte: Universidade de Lisboa Publicador: Universidade de Lisboa
Tipo: Dissertação de Mestrado
Publicado em //2007 POR
Relevância na Pesquisa
46.22%
Trabalho de projecto de mestrado em Engenharia Informática, apresentado à Universidade de Lisboa, através da Faculdade de Ciências, 2007; Este documento descreve o projecto realizado no âmbito da disciplina de Projecto em Engenharia Informática do segundo ano do curso Mestrado em Engenharia Informática da Faculdade de Ciências da Universidade de Lisboa. O projecto é desenvolvido no Pólo de Lisboa da Portugal Telecom Inovação. Esta instituição tem como objectivo ser líder nas áreas de conhecimento estratégicas para o desenvolvimento dos negócios em que o Grupo Portugal Telecom está presente. O trabalho de investigação e desenvolvimento é enquadrado no projecto IP-JIB, uma plataforma para fornecimento de serviços inteligentes na rede de telecomunicações de próxima geração do Grupo Portugal Telecom. Em concreto, o trabalho consistiu no estudo e concepção de um serviço que permita ao utilizador controlar o comportamento de todas as suas telecomunicações, dependente do contexto em que este se encontra. Relata-se o estudo que existiu no campo das redes de próxima geração e na concepção ou adaptação de um motor de regras que representasse a lógica de decisão de serviço. Neste âmbito, pretende-se esclarecer o leitor sobre a necessidade e a forma de concepção deste sistema normalmente associado à Inteligência Artifcial.; This document describes the project developed in the course Projecto em Engenharia Inform ática (Informatic Engineering Project) that took place in the second year of the course Mestrado em Engenharia Informática (Informatic Engineering Masters) of the University of Lisbon Faculty of Science. The project took place at the Lisbon Pole of Portugal Telecom Inovação. The main goal of this company is to be leader in strategic research areas to develop the core business of the Portugal Telecom Group. This research and development work is related to the project IP-JIB...

Experience using a programmable rules engine to implement a complex medical protocol during order entry.

Starmer, J. M.; Talbert, D. A.; Miller, R. A.
Fonte: American Medical Informatics Association Publicador: American Medical Informatics Association
Tipo: Artigo de Revista Científica
Publicado em //2000 EN
Relevância na Pesquisa
36.03%
WizOrder, Vanderbilt University Medical Center's (VUMC) clinician order entry system, is an excellent platform for delivering high-quality decision support to clinical end-users. A scripting language designed to make it easy for non-programmer domain experts to enter rules helps distribute the generation and maintenance of the knowledge-base necessary to drive effective decision support. Domain-experts have used this system to successfully implement relatively simple protocols. The VUMC Care Improvement Committee identified diagnosis of and treatment for suspected or confirmed deep venous thrombosis or pulmonary embolism as an area where decision-support could improve clinician compliance with established evidence-based protocols. The authors describe our experience with using our existing scripting system to implement decision support for a complex medical protocol.

Discovering context-topic rules in search engine logs

Levene, Mark; Hurtado, Carlos
Fonte: SPRINGER-VERLAG BERLIN Publicador: SPRINGER-VERLAG BERLIN
Tipo: Artículo de revista
EN
Relevância na Pesquisa
26.45%
In this paper, we present a class of rules, called context-topic rules, for discovering associations between topics and contexts, where a context is defined as a set of features that can be extracted from the log file of a Web search engine. We introduce a notion of rule interesting-ness that measures the level of the interest of the topic within a context, and provide an algorithm to compute concise representations of interesting context-topic rules. Finally, we present the results of applying the methodology proposed to a large data log of a search engine.

Towards the Ontology Web Search Engine

Verhodubs, Olegs
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 04/05/2015
Relevância na Pesquisa
26.32%
The project of the Ontology Web Search Engine is presented in this paper. The main purpose of this paper is to develop such a project that can be easily implemented. Ontology Web Search Engine is software to look for and index ontologies in the Web. OWL (Web Ontology Languages) ontologies are meant, and they are necessary for the functioning of the SWES (Semantic Web Expert System). SWES is an expert system that will use found ontologies from the Web, generating rules from them, and will supplement its knowledge base with these generated rules. It is expected that the SWES will serve as a universal expert system for the average user.

A Framework for Prefetching Relevant Web Pages using Predictive Prefetching Engine (PPE)

Jyoti; Sharma, A. K.; Goel, Amit
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 28/09/2011
Relevância na Pesquisa
26.23%
This paper presents a framework for increasing the relevancy of the web pages retrieved by the search engine. The approach introduces a Predictive Prefetching Engine (PPE) which makes use of various data mining algorithms on the log maintained by the search engine. The underlying premise of the approach is that in the case of cluster accesses, the next pages requested by users of the Web server are typically based on the current and previous pages requested. Based on same, rules are drawn which then lead the path for prefetching the desired pages. To carry out the desired task of prefetching the more relevant pages, agents have been introduced.; Comment: 9 pages

Swift observations of GRB 070110: an extraordinary X-ray afterglow powered by the central engine

Troja, E.; Cusumano, G.; O'Brien, P.; Zhang, B.; Sbarufatti, B.; Mangano, V.; Willingale, R.; Chincarini, G.; Osborne, J. P.; Marshall, F. E.; Burrows, D. N.; Campana, S.; Gehrels, N.; Guidorzi, C.; Krimm, H. A.; La Parola, V.; Liang, E. W.; Mineo, T.; Mo
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
26.23%
We present a detailed analysis of Swift multi-wavelength observations of GRB 070110 and its remarkable afterglow. The early X-ray light curve, interpreted as the tail of the prompt emission, displays a spectral evolution already seen in other gamma-ray bursts. The optical afterglow shows a shallow decay up to ~2 d after the burst, which is not consistent with standard afterglow models. The most intriguing feature is a very steep decay in the X-ray flux at ~20 ks after the burst, ending an apparent plateau. The abrupt drop of the X-ray light curve rules out an external shock as the origin of the plateau in this burst and implies long-lasting activity of the central engine. The temporal and spectral properties of the plateau phase point towards a continuous central engine emission rather than the episodic emission of X-ray flares. We suggest that the observed X-ray plateau is powered by a spinning down central engine, possibly a millisecond pulsar, which dissipates energy at an internal radius before depositing energy into the external shock.; Comment: 10 pages, 5 figures, accepted for publication in ApJ. Main change: refined analysis of optical data

Single Particle Stochastic Heat Engine

Rana, Shubhashis; Pal, P. S.; Saha, Arnab; Jayannavar, A. M.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
26.3%
We have performed an extensive analysis of a single particle stochastic heat engine constructed by manipulating a Brownian particle in a time dependent harmonic potential. The cycle consists of two isothermal steps at different temperatures and two adiabatic steps similar to that of a Carnot engine. The engine shows qualitative differences in inertial and overdamped regimes. All the thermodynamic quantities, including efficiency, exhibit strong fluctuations in a time periodic steady state. The fluctuations of stochastic efficiency dominate over the mean values even in the quasistatic regime. Interestingly, our system acts as an engine provided the temperature difference between the two reservoirs is greater than a finite critical value which in turn depends on the cycle time and other system parameters. This is supported by our analytical results carried out in the quasistatic regime. Our system works more reliably as an engine for large cycle times. By studying various model systems we observe that the operational characteristics are model dependent. Our results clearly rules out any universal relation between efficiency at maximum power and temperature of the baths. We have also verified fluctuation relations for heat engines in time periodic steady state.; Comment: 13 pages...

XESS: The XML expert system shell

St. Jacques, Robert J.
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
EN_US
Relevância na Pesquisa
36.16%
The XML Expert System Shell (XESS) was designed to alleviate some of the difficulties associated with translating a knowledge base from one expert system to another. The major goal of XESS is to allow programmers to model an expert system, complete with traditional facts and rules, in an XML-based language that leverages the universally understood terms used when teaching artificial intelligence to students. XML, the extensible markup language, is a text-based standard for information interchange between disparate systems1; it was originally designed to represent data in an easily parsable, human readable format2. While some extensions of the XML specification, particularly the Simple Object Access Protocol (SOAP), have long since abandoned human readability, the core XML specification is still used frequently to produce documents that can easily be exchanged between computational platforms and created or understood by human beings. The XESS-XML language inherits all of the usability of XML; it can be edited by hand in any text editor, is human readable, and can be parsed using XML parsers commonly available in any modern programming language. The XML Schema specification provides a mechanism for explicitly defining the content of an XML document so that a document can be validated3...

Metasearch engine for Austrian research information

Andricík, Marek
Fonte: euroCRIS; Kassel University Press Publicador: euroCRIS; Kassel University Press
Tipo: Conference Paper
EN
Relevância na Pesquisa
36.17%
Presented at the CRIS2002 Conference in Kassel.-- 7 pages.-- Contains: Conference paper (PDF) + PPT presentation.; Majority of Austrian research relevant information available on the Web these days can be indexed by web full-text search engines. But there are still several sources of valuable information, which cannot be indexed directly. One of effective ways of getting this information to end-users is using metasearch technique. For better understanding it is important to say that metasearch engine does not use its own index. It collects search results provided by other search engines, and builds a common hit list for end users. Our prototype provides access to five sources of research relevant information available on the Austrian web.